
My whippet 'Stanley' can do 15 mins max in the car before he is sick. Anything over this, he is still on Stugeron. I started off giving him 1/2 a tablet to begin with & now give just 1/4. A whippet is no where as heavy as a 12 yr old child. I would try 1/2 to begin with & make sure that you give it 1 to 2 hrs before he travels. My GSD was around 4 yrs of age before he grew out of it, hoping Stanley the whippet grows out of it too!